EP4281670A1 - Pompe volumétrique rotative dotée d'une protection - Google Patents

Pompe volumétrique rotative dotée d'une protection

Info

Publication number
EP4281670A1
EP4281670A1 EP22700964.4A EP22700964A EP4281670A1 EP 4281670 A1 EP4281670 A1 EP 4281670A1 EP 22700964 A EP22700964 A EP 22700964A EP 4281670 A1 EP4281670 A1 EP 4281670A1
Authority
EP
European Patent Office
Prior art keywords
guard
drive shaft
guards
transmission housing
positive displacement
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP22700964.4A
Other languages
German (de)
English (en)
Inventor
Simon Cargill
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alfa Laval Corporate AB
Original Assignee
Alfa Laval Corporate AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from EP21152412.9A external-priority patent/EP4030056A1/fr
Application filed by Alfa Laval Corporate AB filed Critical Alfa Laval Corporate AB
Publication of EP4281670A1 publication Critical patent/EP4281670A1/fr
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • F04C2/18—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with similar tooth forms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C17/00—Arrangements for drive of co-operating members, e.g. for rotary piston and casing
    • F01C17/02—Arrangements for drive of co-operating members, e.g. for rotary piston and casing of toothed-gearing type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C13/00—Adaptations of machines or pumps for special use, e.g. for extremely high pressures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C13/00—Adaptations of machines or pumps for special use, e.g. for extremely high pressures
    • F04C13/001—Pumps for particular liquids
    • F04C13/002—Pumps for particular liquids for homogeneous viscous liquids
    • F04C13/004—Pumps for particular liquids for homogeneous viscous liquids with means for fluidising or diluting the material being pumped
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0042—Systems for the equilibration of forces acting on the machines or pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
    • F04C15/0061—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0096—Heating; Cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
    • F04C15/0034—Sealing arrangements in rotary-piston machines or pumps for other than the working fluid, i.e. the sealing arrangements are not between working chambers of the machine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/30—Casings or housings

Definitions

  • Fig. 2 shows schematically a front-view of an example embodiment of the pump
  • Fig. 4 shows schematically a perspective view of an example embodiment of a rotor of the pump
  • Fig. 15 shows a side view of the transmission housing with a single first guard surrounding both drive shafts.
  • An end portion 9 of one of the first and second drive shafts 4, 5, such as for example the first drive shaft 4, may extend out through a wall of the transmission housing 2 at the rear side of the transmission housing 2 for rotational connection with a rotational torque source, such as for example a motor, for powering the pump 1 .
  • a rotational torque source such as for example a motor
  • the transmission housing 2 may for include first and second axially protruding attachment portions 60, 61 facing the rotor casing 15 and located on opposite sides of the drive shafts 4, 5.
  • the rotor casing 15 may then be connected to the front side 13 of the transmission housing 2 via said first and second axially protruding attachment portions 61 , 62, such that an intermediate space 42 is accomplished between the front wall 38 of the transmission housing 2 and the rear wall 20 of the rotor casing 25.
  • the first and second axially protruding attachment portions 60, 61 are only provided at two opposite sides of the transmission housing 2, such that access to the intermediate space 42 is possible from the second lateral sides 12, as illustrated in figures 1 and 6.
  • the protective body 70 of the first guard 51 or each of the first and second guards 51 , 52 that surrounds the first and/or second drive shafts 4, 5 may be made in one piece.
  • the protective body 70 of the first guard 51 may alternatively be made of a plurality of parts, specifically two parts, which are assembled next to each other. This design would potentially allow dismounting of the guard without need for removal of the rotor casing 15.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Rotary Pumps (AREA)

Abstract

Pompe volumétrique rotative (1) pour pomper un produit fluide, la pompe (1) ayant un côté avant et un côté arrière. La pompe comprend un boîtier de transmission (2) ayant une paroi avant axiale (38) et une paroi arrière axiale et fournissant un support rotatif à de premier et second arbres de transmission parallèles et s'étendant axialement (4, 5) ayant des engrenages (6, 7) dans un état d'engrènement constant, de sorte que les premier et second arbres de transmission (4, 5) sont agencés pour tourner dans des sens opposés. La pompe comprend en outre un carter de rotor (15) reliée à un côté avant (13) du carter de transmission (2) et comportant une paroi arrière axiale (20), une paroi avant axiale (22) et une paroi latérale circonférentielle (21) définissant conjointement une cavité de pompage intérieure fixe. Le carter de rotor (15) loge un premier rotor (23) qui est relié par entraînement au premier arbre de transmission (4) et un second rotor (24) qui est relié par entraînement au second arbre de transmission (5). Les premier et second rotors (23, 24) sont configurés pour tourner dans des sens opposés et interagir mutuellement pour fournir un effet de pompage positif sur un produit fluide qui entre dans la cavité de pompage par l'intermédiaire d'une entrée de carter de rotor (30) et sort de la cavité de pompage par l'intermédiaire d'une sortie de carter de rotor (31). De plus, la paroi avant axiale (38) du carter de transmission (2) et la paroi arrière axiale (20) du carter de rotor définissent conjointement un espace intermédiaire (42) à travers lequel s'étendent les premier et second arbres de transmission (4, 5). La pompe volumétrique rotative (1) comprend en outre une première protection (51) située dans ledit espace intermédiaire (42) et entourant les premier et second arbres de transmission (4, 5) pour empêcher une personne d'entrer en contact avec les premier et second arbres de transmission (4, 5) ; ou une première protection (51) située dans ledit espace intermédiaire (42) et entourant le premier arbre de transmission (4) pour empêcher une personne d'entrer en contact avec le premier arbre de transmission (4), et une seconde protection (52) située dans ledit espace intermédiaire (42) et entourant le second arbre de transmission (5) pour empêcher une personne d'entrer en contact avec le second arbre de transmission (5).
EP22700964.4A 2021-01-19 2022-01-19 Pompe volumétrique rotative dotée d'une protection Pending EP4281670A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP21152412.9A EP4030056A1 (fr) 2021-01-19 2021-01-19 Pompe à déplacement positif rotatif
EP21178353.5A EP4030057A1 (fr) 2021-01-19 2021-06-08 Pompe volumétrique rotative dotée d'un élément de protection
PCT/EP2022/051071 WO2022157168A1 (fr) 2021-01-19 2022-01-19 Pompe volumétrique rotative dotée d'une protection

Publications (1)

Publication Number Publication Date
EP4281670A1 true EP4281670A1 (fr) 2023-11-29

Family

ID=80050603

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22700964.4A Pending EP4281670A1 (fr) 2021-01-19 2022-01-19 Pompe volumétrique rotative dotée d'une protection

Country Status (5)

Country Link
US (1) US20240052831A1 (fr)
EP (1) EP4281670A1 (fr)
JP (1) JP2024502883A (fr)
BR (1) BR112023012193A2 (fr)
WO (1) WO2022157168A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202022106643U1 (de) * 2022-11-28 2023-03-28 KSB SE & Co. KGaA 3D gedruckte Rotoren mit Hohlstruktur

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3129010A (en) * 1960-06-02 1964-04-14 Philadelphia Gear Corp Shaft seal assembly
US5199317A (en) * 1992-06-22 1993-04-06 Borg-Werner Automotive Transmission & Engine Components Corporation Forward and reverse power shift transmission
US7905717B2 (en) * 2008-06-09 2011-03-15 Wright Flow Technologies Limited PD pumps with a common gearbox module and varying capacities and easy access to mechanical seals
US8821141B2 (en) * 2011-06-23 2014-09-02 Wright Flow Technologies Limited Positive displacement rotary pumps with improved cooling
CN104271960A (zh) * 2012-03-01 2015-01-07 托拉德机械有限公司 用于旋转式压缩机的转子总成
DE102012104736B4 (de) * 2012-05-31 2016-02-04 ipp Pump Products GmbH Drehkolbenpumpe
WO2019148007A1 (fr) * 2018-01-26 2019-08-01 Waterblasting, Llc Pompe pour matières thermoplastiques fondues

Also Published As

Publication number Publication date
JP2024502883A (ja) 2024-01-23
WO2022157168A1 (fr) 2022-07-28
BR112023012193A2 (pt) 2023-12-05
US20240052831A1 (en) 2024-02-15

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